Foot accelerator for motor vehicles



Jan. 13. 1925. 1,523,176

D. CUBBAGE FOOT ACCELERATOR FOR MOTOR VEHICLES Filed Nov. 8,. 192sWITNESSES IN VEN TOR symj A TTORNE YS Patented Jan. 13, 1925.

DACIL GUBIBAGE, OF OXFORD JUNCTION, IOWA.

FOOT ACCELERATOR FOR MOTOR VEHICLES.

' Application filed November 8, 1923. Serial No. 673,522.

To all whom it may concern:

Be .it known that I, DACIL OUBBAGE, a citizen of theUnited States, andresident of Oxford Junction, in the county of Jones and State of Iowa,have invented certain new and useful Improvements in Foot A e-'celerators for Motor Vehicles, of which the following is aspecification.

The invention relates to improvements in accelerators of the type whichis adapted when actuated by foot pressure to transmit motion throughabell crank to a rod which is'connected with the carbureter of the motorvehicle for the purpose of operating the fuel control means of thecarbureter so that the supply of fuel permitted to pass through thecarbureter to the cylinders of the engine will be increased, whereby thespeed of the engine and of the motor vehicle will be correspondinglyincreased. An ob ect of the invention is to provide an accelerator ofthe character described which is of simplified construction and isadapted tobe readily and easily secured in position to actuate thecarburetor actuating rod of a motor vehicle of a well known type ofconstructionwithout any changes being required in the usual carburetorcontrol mechanism of the motor vehicle and without interfering with theoperation of the usual carburetor control mechanism of the motor vehiclein an ordinary manner.

A further object of the invention is to provide an accelerator of thecharacter described which is constructed in such manner that a lubricantcan be supplied conveniently and easily to the relatively moving partsof the bell crank and therefor.

A still further object of the invention is to provide an accelerator ofthe character described which is adapted to be operated with butrelatively little wear on the moving parts thereof and which isnotlikely to get out of order easily in service.

A further object is to provide an accelerator of the character describedwhich includes spring means tending to return the accelerator to neutralposition when foot pressure has been removed therefrom, and meanswhereby the tension on the spring may be varied to vary the resistancewhich will be opposed to foot pressure on the accelerator.

Other objects and advantages will be apparent from the followingdescription, con:

the support sidered in conjunction with the accompanying drawings, inwhich- Figure 1 is a view showing an accelerator embodying the inventionin association with a carburetor actuating rod and the floor board of amotor vehicle, the accelerator being shown in side elevation and afragmentary portion of the floor board being shown in vertical section.

Figure 2 is a fragmentary plan view of the accelerator and of thecarburetor actuating rod.

In the drawings, the numeral 1 designates a rod which is an ordinarypart of a motor vehicle of a well known type of construction and isadapted at one end for connection with the usual means of the carburetorfor controlling the flow of fuel through the carburetor to the cylindersof the engine of the motor vehicle. The rod 1 will be hereinafterreferred to as the carburetor actuating rod.

The rod 1 is provided, at its other end with a downwardly turned portion2 to which one end of a transmission member, such as the chain 3 isattached. The chain 3 is adapted. for connection with the usual handlever (not shown) which ordinarily is supported on a motor vehicle ofthe type referred to in position to be conveniently operated by theoperator of the vehicle for the1 purpose of transmitting motion to there 1.

The numeral 4: designates a portion of the floor board of the vehicle.The parts described so far are ordinary in construction and form no partof my invention except in so far as they cooperate with the parts whichwill now be described.

In carrying out the invention, I provide a supporting plate 5 having anopening 6 formed therethrough for the reception of a bolt for securingthe plate 5 to a convenient support which in actual practice will be aportion of the engine block. The plate 5 has one vertical edge portionthereof bent to provide a vertical bearing sleeve 7 for the shaftportion 8 of a bell-crank. The upper arm of the bell crank, indicated at8, is supported in slightly spaced relation to the plane of the upperend of the bearing sleeve 7 through the agency of a bearing or stopwasher 9 which is secured on the shaft of the bell crank adjacent to thejuncture of'the shaft 8 and upper arm 8 and which 7 v rests upon theupper end of the tubular bear- 7 ing 7. The shaft 8 of the bell crank isof "lubricant between the shaft of thebell crank and the inner wall ofthe bearing 7 at the 7 upper end of the latter. 7 The lower arm of thebell crank, indicated at 8 has the outer end portion thereof flattenedand apertured as best seen in Figure 2 to pivotally receive thedownturned end portion 2 of the, car buretor actuating rod 1, it ofcourse being understood thatsuch downturned end portion of thecarburetor actuating rod is projected through the aperture in the arm 8before the chain 3 has been engaged with the portion 2 of the carburetoractuating rod.

The upper arm 8 of the bell crank is provided with a vertical opening inthe outer ei idportionth-ereof for the receptionof the downwardly turnedinner end portion of a embodiment in forms other than that .1lluspedalpush rod 11. The pedal push rod 11 extends loosely through an opening 12in the floor platelet and through an opening in a metal escutcheon 13which is secured to the outer face of the floor plate and is provided'atits outer end with a pedal plate 14:. The connection'of the pedal pushrod 11 with the upper arm 8 of the bell crank is pivotal and the pedalpush rod is of such shape that the resultant movement thereof whenpressure is applied against the pedal plate 14 will cause the bell crankto be rocked about the axis of the shaft portion thereof. The rocking-ofthe bell crankwill of course cause movement of the carburetor actuatingrod 1 in the general direction of its length; An arm 15 which preferablylies in the plane of the plate 5. extends outwardly from the upper endof the bearing 7 and may be secured to the plate 5 or to the bean ing 7in any suitable known manner, as by welding. The arm 15 has the outerend portion thereof provided witha series of openings extendinglongitudinally of the arm. A retractile spring 1 end to be detachablyengaged in any one of the openings and is attached at its inner end tothe extremity ofthe downwardly turned portion 10 of the pedal push rod.The spring 17 is placed underincreased tension when the bell crank isrocked about its axis as a result of inwardmovement of the pedal pushrod and therefore will function to return the bell crank to initialposition as soon as the pressure which causes inward movement of'thepedal push rod has been removed. The spring 17 also serves toprevehicle.

is adapted at its outer' vent displacement of the downwardly turned endportion 10 of the pedal push rod from engagement with the opening intheupper arm 8 of the bell crank and tends to resist inward movement of thepedal push rod. The resistance to inward movement of the .push .rod. maybe varied by connecting the spring 17 to the various openings 16selectively.

From the foregoing description of the various parts of' the device, theI operation thereof may be readily understood. Z'The device is notlikely to get out of order easily and provides a conveniently operableand eflicientmeans for transmitting motion from the foot of the operatorof the motor vehicle which is equipped withvthe device to the carburetoractuating rod of the motor hen the foot pressure has been removed, therelatively movingipartsof the device and therefore the carburetoractuating rod are returnedto initial position and are yieldingly held ininitial position. The device does notprevent theactuationofthecarburetor actuating rod 1 through the agency of the usual hand controllever of the vehicle in the usual manner.

Obviously, my invention is susceptibleof trated in the accompanyingdrawings and'I therefore consider as my own all suchmodifications andadaptations. of the form-of the device herein described as fairly fallwithin the scope of the appen dedxclaims.

I claimz-i- 1. A device of the character described comprising a platehaving'an attaching portion formed at one end to provide a verticallydisposed tubular bearing, a: bell crank "having the shaft portionthereof rotatably and slid-ably received said bearing said bell crankbeing adapted at ts lower end for connection with an axially.movableelement,

- a bearingwasher carried by the shaft portions of the bell crank forengagement with the upper end of "said tubular bearing to limit theaxial movement of the bell crank shaft downwardly in the bearing, apedal push rod pivotally connected at one end to the upper endof saidbell crank; an arm carried by said plate and extending the plane of thelatteij said arm having a series of openings formed therein tolextendlongi- *tudinal-ly thereof, and. a' retractile spring adjustablyengageable 'at one end with said series ofgopenings and attached at itsother end tosaid end of said push rod.

2.111 a device of theQcharacter described comprising an attachingplatehavinga vertically disposed tubular bearing at one end thereof, abell crank. having a shaft portion journalled in the bearingfand:having'a laterally extending arm at .the upper end there- .of, saidlaterally extendingarm-having a flattened outer end portio11pr0vided-'-nrith a vertical aperture, a push rod having a downtur'nedend portion extending loose- 1y through said vertical aperture, an armcarried by said attaching plate in position to extend laterally of theupper end of the bearing and in the plane of the attaching plate, aretractile spring to the extremity of said downturned end 10 portion ofthe push rod, as and for the purpose described.

DAGIL OUBBAGE.

